Avoid copying of strings and making tiny allocations

midori/main.c

@@ -216,12 +216,10 @@ settings_save_to_file (MidoriWebSettings* settings,
             }
 
             g_object_get (settings, property, &string, NULL);
-            if (!string)
-                string = g_strdup ("");
             if (!def_string)
                 def_string = "";
-            if (strcmp (string, def_string))
+            if (strcmp (string ? string : "", def_string))
-                g_key_file_set_string (key_file, "settings", property, string);
+                g_key_file_set_string (key_file, "settings", property, string ? string : "");
             g_free (string);
         }
         else if (type == G_TYPE_PARAM_INT)
@@ -1405,8 +1403,7 @@ midori_load_session (gpointer data)
     {
         katze_item_set_meta_integer (item, "append", 1);
         katze_item_set_meta_integer (item, "dont-write-history", 1);
-        if (load_on_startup == MIDORI_STARTUP_DELAYED_PAGES
+        if (load_on_startup == MIDORI_STARTUP_DELAYED_PAGES)
-         && katze_item_get_meta_integer (item, "delay") == -1)
             katze_item_set_meta_integer (item, "delay", 1);
         midori_browser_add_item (browser, item);
     }

midori/midori-array.c

@@ -796,7 +796,7 @@ katze_item_metadata_to_xbel (KatzeItem* item)
     const gchar* value;
 
     if (!keys)
-        return g_strdup ("");
+        return NULL;
 
     markup = g_string_new ("<info>\n<metadata");
     markdown = g_string_new (NULL);
@@ -856,7 +856,7 @@ katze_array_to_xbel (KatzeArray* array,
         ">\n");
     string_append_xml_element (markup, "title", katze_item_get_name (KATZE_ITEM (array)));
     string_append_xml_element (markup, "desc", katze_item_get_text (KATZE_ITEM (array)));
-    g_string_append (markup, metadata);
+    g_string_append (markup, metadata ? metadata : "");
     KATZE_ARRAY_FOREACH_ITEM_L (item, array, list)
         string_append_item (markup, item);
     g_string_append (markup, "</xbel>\n");

midori/midori-browser.c

@@ -3341,17 +3341,17 @@ midori_browser_get_uri_extension (const gchar* uri)
     slash = strrchr (uri, '/');
     /* Huh, URI without slashes? */
     if (!slash)
-        return g_strdup ("");
+        return NULL;
 
     ext_end = period = strrchr (slash, '.');
     if (!period)
-       return g_strdup ("");
+       return NULL;
 
     /* Skip the period */
     ext_end++;
     /* If *ext_end is 0 here, the URI ended with a period, so skip */
     if (!*ext_end)
-       return g_strdup ("");
+       return NULL;
 
     /* Find the end of the extension */
     while (*ext_end && g_ascii_isalnum (*ext_end))
@@ -5489,7 +5489,7 @@ midori_browser_size_allocate_cb (MidoriBrowser* browser,
 {
     GtkWidget* widget = GTK_WIDGET (browser);
 
-    if (gtk_widget_get_realized (widget) && !browser->alloc_timeout)
+    if (!browser->alloc_timeout && gtk_widget_get_realized (widget))
     {
         gpointer last_page;
 

midori/midori-view.c

@@ -1951,8 +1951,8 @@ gtk_widget_key_press_event_cb (WebKitWebView* web_view,
     if (!webkit_web_view_can_cut_clipboard (web_view)
         && !webkit_web_view_can_paste_clipboard (web_view))
     {
-        gchar* text = character ? g_strdup_printf ("%c", character) : g_strdup ("");
+        gchar* text = character ? g_strdup_printf ("%c", character) : NULL;
-        g_signal_emit (view, signals[SEARCH_TEXT], 0, TRUE, text);
+        g_signal_emit (view, signals[SEARCH_TEXT], 0, TRUE, text ? text : "");
         g_free (text);
         return TRUE;
     }
@@ -3720,7 +3720,7 @@ prepare_speed_dial_html (MidoriView* view,
     else
     {
         g_free (file_path);
-        return g_strdup ("");
+        return NULL;
     }
 
     groups = g_key_file_get_groups (key_file, NULL);
@@ -3774,7 +3774,7 @@ prepare_speed_dial_html (MidoriView* view,
             }
             else
             {
-                encoded = g_strdup ("");
+                encoded = NULL;
                 if (load_missing)
                     midori_view_speed_dial_get_thumb (view, groups[i], uri);
             }
@@ -3785,7 +3785,7 @@ prepare_speed_dial_html (MidoriView* view,
                 "<a class=\"cross\" href=\"#\" onclick='clearShortcut(\"s%d\");'></a>"
                 "<a href=\"%s\"><img src=\"data:image/png;base64,%s\"></a>"
                 "</div><div class=\"title\" onclick='renameShortcut(\"s%d\");'>%s</div></div>\n",
-                slot, slot, uri, encoded, slot, title ? title : "");
+                slot, slot, uri, encoded ? encoded : "", slot, title ? title : "");
 
             g_free (title);
             g_free (encoded);
@@ -3848,7 +3848,7 @@ midori_view_set_uri (MidoriView*  view,
                 speeddial_markup = prepare_speed_dial_html (view, TRUE);
 
             midori_view_load_alternate_string (view,
-                speeddial_markup, "about:blank", NULL);
+                speeddial_markup ? speeddial_markup : "", "about:blank", NULL);
 
             #ifdef G_ENABLE_DEBUG
             if (g_getenv ("MIDORI_STARTTIME") != NULL)
@@ -3960,7 +3960,7 @@ midori_view_set_uri (MidoriView*  view,
                 katze_item_set_uri (view->item, view->uri);
             g_object_notify (G_OBJECT (view), "uri");
         }
-        else if (katze_item_get_meta_integer (view->item, "delay") > 0)
+        else if (katze_item_get_meta_boolean (view->item, "delay"))
         {
             katze_assign (view->uri, g_strdup (uri));
             katze_item_set_meta_integer (view->item, "delay", -1);

midori/sokoke.c

@@ -1701,7 +1701,7 @@ midori_download_prepare_tooltip_text (WebKitDownload* download)
 
     if (time_estimated > 0)
     {
-        gchar* eta;
+        gchar* eta = NULL;
         if (hours_left > 0)
             eta = g_strdup_printf ("%s, %s", hours_str, minutes_str);
         else if (minutes_left >= 10)
@@ -1710,12 +1710,13 @@ midori_download_prepare_tooltip_text (WebKitDownload* download)
             eta = g_strdup_printf ("%s, %s", minutes_str, seconds_str);
         else if (seconds_left > 0)
             eta = g_strdup_printf ("%s", seconds_str);
-        else
+        if (eta != NULL)
-            eta = g_strdup ("");
+        {
             /* i18n: Download tooltip (estimated time) : - 1 hour, 5 minutes remaning */
             g_string_append_printf (tooltip, _(" - %s remaining"), eta);
             g_free (eta);
         }
+    }
 
     g_free (hours_str);
     g_free (seconds_str);

panels/midori-bookmarks.c

@@ -216,9 +216,9 @@ midori_bookmarks_insert_item_db (sqlite3*     db,
     gchar* sqlcmd;
     char* errmsg = NULL;
     KatzeItem* old_parent;
-    gchar* parent;
+    const gchar* parent;
-    gchar* uri;
+    const gchar* uri = NULL;
-    gchar* desc;
+    const gchar* desc = NULL;
 
     /* Bookmarks must have a name, import may produce invalid items */
     g_return_if_fail (katze_item_get_name (item));
@@ -227,30 +227,26 @@ midori_bookmarks_insert_item_db (sqlite3*     db,
         return;
 
     if (KATZE_ITEM_IS_BOOKMARK (item))
-        uri = g_strdup (katze_item_get_uri (item));
+        uri = katze_item_get_uri (item);
-    else
-        uri = g_strdup ("");
 
     if (katze_item_get_text (item))
-        desc = g_strdup (katze_item_get_text (item));
+        desc = katze_item_get_text (item);
-    else
-        desc = g_strdup ("");
 
     /* Use folder, otherwise fallback to parent folder */
     old_parent = katze_item_get_parent (item);
     if (folder && *folder)
-        parent = g_strdup (folder);
+        parent = folder;
     else if (old_parent && katze_item_get_name (old_parent))
-        parent = g_strdup (katze_item_get_name (old_parent));
+        parent = katze_item_get_name (old_parent);
     else
-        parent = g_strdup ("");
+        parent = "";
 
     sqlcmd = sqlite3_mprintf (
             "INSERT into bookmarks (uri, title, desc, folder, toolbar, app) values"
             " ('%q', '%q', '%q', '%q', %d, %d)",
-            uri,
+            uri ? uri : "",
             katze_item_get_name (item),
-            desc,
+            desc ? desc : "",
             parent,
             katze_item_get_meta_boolean (item, "toolbar"),
             katze_item_get_meta_boolean (item, "app"));
@@ -261,9 +257,6 @@ midori_bookmarks_insert_item_db (sqlite3*     db,
         sqlite3_free (errmsg);
     }
 
-    g_free (uri);
-    g_free (parent);
-    g_free (desc);
     sqlite3_free (sqlcmd);
 }
 
@@ -315,30 +308,31 @@ midori_bookmarks_row_changed_cb (GtkTreeModel*    model,
 {
     KatzeItem* item;
     GtkTreeIter parent;
-    gchar* parent_name;
+    KatzeItem* new_parent = NULL;
+    const gchar* parent_name;
 
     gtk_tree_model_get (model, iter, 0, &item, -1);
 
     if (gtk_tree_model_iter_parent (model, &parent, iter))
     {
-        KatzeItem* new_parent;
-
         gtk_tree_model_get (model, &parent, 0, &new_parent, -1);
 
         /* Bookmarks must not be moved into non-folder items */
         if (!KATZE_ITEM_IS_FOLDER (new_parent))
-            parent_name = g_strdup ("");
+            parent_name = "";
         else
-            parent_name = g_strdup (katze_item_get_name (new_parent));
+            parent_name = katze_item_get_name (new_parent);
-
-        g_object_unref (new_parent);
     }
     else
-        parent_name = g_strdup ("");
+        parent_name = "";
 
     katze_array_remove_item (bookmarks->array, item);
     katze_item_set_meta_string (item, "folder", parent_name);
     katze_array_add_item (bookmarks->array, item);
+
+    g_object_unref (item);
+    if (new_parent)
+        g_object_unref (new_parent);
 }
 
 static void